Solved: Error when querying the vCO REST API

BryanL · ‎10-10-2013

I'm attempting to query vCO for a list of workflow names but am running into problems. I'm making a GET request with the following URL using a simple REST client:

https://vco.domain.local:8281/api/workflows?keys=name&maxResult=5

Request headers:

Accept: application/json;v=5.1.1

Content-Type: application/json;v=5.1.1

Authorization: Basic 8s7f6s8f698s6f87s68f7=

Connection: keep-alive

Origin: chrome-extension: //rest-console-id

User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_8_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.69 Safari/537.36

I receive the following response followed by a stack dump:

<html><head><title>JBossWeb/2.0.1.GA - Error report</title><style></style> </head><body><h1>HTTP Status 500 - </h1><HR size="1" noshade="noshade"><p><b>type</b> Exception report</p><p><b>message</b> <u></u></p><p><b>description</b> <u>The server encountered an internal error () that prevented it from fulfilling this request.</u></p><p><b>exception</b> <pre>org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException

HOWEVER, the following request will return 5 workflow IDs as expected, only change being the keys query parameter. Any ideas on what I'm doing wrong?

https://vco.domain.local:8281/api/workflows?keys=id&maxResult=5

igaydajiev · ‎10-10-2013

Just checked the source and it appears that when using "keys" to filter the returned properties it is required always to include "id"

Setting both should work ?keys=name&keys=id

https://vco.domain.local:8281/api/workflows?keys=name&keys=id&maxResult=5?

I will open a bug and will fix it for the next update release.

View solution in original post

iiliev · ‎10-10-2013

Request seems OK. Could you send the stack trace dump (either in this thread or in private message to me)?

Also, could you check what happens if you make the same request with 'Accept' header value set to

Accept: application/xml (to get response in XML format)
Accept: application/json (without v=5.1.1)

igaydajiev · ‎10-10-2013

Just checked the source and it appears that when using "keys" to filter the returned properties it is required always to include "id"

Setting both should work ?keys=name&keys=id

https://vco.domain.local:8281/api/workflows?keys=name&keys=id&maxResult=5?

I will open a bug and will fix it for the next update release.

BryanL · ‎10-10-2013

Full response body is below. Same result with the accept header set to application/json and application/xml. Also, forgot to mention that I'm use the appliance 5.1.1.0 build 1070383 in case it matters.

<html><head><title>JBossWeb/2.0.1.GA - Error report</title><style></style> </head><body><h1>HTTP Status 500 - </h1><HR size="1" noshade="noshade"><p><b>type</b> Exception report</p><p><b>message</b> <u></u></p><p><b>description</b> <u>The server encountered an internal error () that prevented it from fulfilling this request.</u></p><p><b>exception</b> <pre>org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.NullPointerException

org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:894)

org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:778)

javax.servlet.http.HttpServlet.service(HttpServlet.java:690)

javax.servlet.http.HttpServlet.service(HttpServlet.java:803)

org.springframework.web.filter.ShallowEtagHeaderFilter.doFilterInternal(ShallowEtagHeaderFilter.java:58)

org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311)

org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)

org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)

org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)

org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)

org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)

org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)

org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)

org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)

org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)

org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:201)

org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)

org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)

org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)

org.springframework.security.web.access.channel.ChannelProcessingFilter.doFilter(ChannelProcessingFilter.java:144)

org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)

org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173)

org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)

org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)

org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)

org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)

org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)

</pre></p><p><b>root cause</b> <pre>java.lang.NullPointerException

com.vmware.o11n.web.inventory.CatalogServiceController.findSimpleListQuery(CatalogServiceController.java:532)

com.vmware.o11n.web.workflow.WorkflowController.getAllWorkflows(WorkflowController.java:122)

sun.reflect.GeneratedMethodAccessor620.invoke(Unknown Source)

sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

java.lang.reflect.Method.invoke(Unknown Source)

org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213)

org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126)

org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96)

org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617)

org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578)

org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)

org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923)

org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852)

org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882)